pacemaker
noun
pace·mak·er
ˈpās-ˌmā-kər 
1
a
: one that sets the pace for another
b
: one that takes the lead or sets an example
2
a
: a group of cells or a body part (such as the sinus node of the heart) that serves to establish and maintain a rhythmic activity
b
: an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart
Examples of pacemaker in a Sentence
has long been regarded as a pacemaker in home electronics
Recent Examples on the Web
In the final report, the medical examiner confirmed Hackman’s date of death as Feb. 18, when his pacemaker showed an abnormal heart rhythm before signals stopped.
—
Theresa Braine, New York Daily News, 28 Apr. 2025
However, the attraction is not recommended for guests with pacemakers, defibrillators, or certain other conditions.
—Nathan Diller, USA Today, 27 Mar. 2025
February 18 Hackman's pacemaker recorded atrial fibrillation.
—Hannah Parry, Newsweek, 8 Mar. 2025
The best treatment, per multiple studies, includes the medicine atropine and temporary pacemaker insertion.
—Randall Colburn, EW.com, 7 Apr. 2025
See All Example Sentences for pacemaker
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Theresa Braine, New York Daily News, 28 Apr. 2025
However, the attraction is not recommended for guests with pacemakers, defibrillators, or certain other conditions.
—Nathan Diller, USA Today, 27 Mar. 2025
February 18 Hackman's pacemaker recorded atrial fibrillation.
—Hannah Parry, Newsweek, 8 Mar. 2025
The best treatment, per multiple studies, includes the medicine atropine and temporary pacemaker insertion.
—Randall Colburn, EW.com, 7 Apr. 2025
See All Example Sentences for pacemaker
Cite this Entry
“Pacemaker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pacemaker. Accessed 20 May. 2025.
Copy CitationKids Definition
pacemaker
noun
pace·mak·er
ˈpā-ˌsmā-kər
1
: a group of cells or a bodily part (as of the heart) that serves to establish and maintain a rhythmic bodily activity
2
: an electrical device for steadying or establishing the heartbeat
Medical Definition
pacemaker
noun
pace·mak·er
ˈpā-ˌsmā-kər
1
: a group of cells or a body part (as the sinoatrial node of the heart) that serves to establish and maintain a rhythmic activity
2
: an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart
called also pacer
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